Fountain-pen.



N0- 827,004. PATENTED JULY 24, 1906. B. F. FLINT.

FOUNTAIN PEN.

APPLICATION FILED 00T.28, 1905.

Vii T225 55 g5. I Z77 YEN/27]".

QWMW- W w UNITED STATES PATENT OFFICE. BENJAMIN FRANKLINFLINT, OF CINCINNATI, OHIO, ASSIGNOR TO DAVID B. KAUFMANN, OF' CINCINNATI, OHIO.

FOUNTAIN-PEN.

Specification of Letters Patent.

Patented July 24, 1906.

Application filed October 28, 190d. Serial Ila 284.868-

' in is a specification.

his invention relates to improvements in fountain-pens of whatis known as the selffiller type; and it consists in the provision ofthe several novel features of construction that are hereinafter described, and shown in drawin s accompany-ing this specification, in which rawings Figure 1 i s a longitudinal side elevation of my pen taken as a whole, showing the device closed and as it a pears when not in active use; Fig. 2, an en arged central or axial section showing the device with the pen-section .end broken away, but otherwise fully illustrating my invention herein; -Fi 3, a detail perspective-view of the presserar for compressing the ink-reservoir in filling or in empt 'ng the latter, as desired or required, and s owing the ink-starting pin thereon which embodies part. of my im rovement herein; Fig. 4, a fra mentary axia section, on a larger scale than ig. 2, showing my improved inkstarting device construction; and Fig. 5, a cross-section on line a a of Fig. 2.

As seen in the views, 1 indicates the penbarrel of hollow tubular form and having a plug 2 at its outer, or what usually constitutes the upper, end of the pen, such plug being preferably screw-threaded to engage a female thread in the barrel 1 for safely securing in place.

3 is 'a tube suitably mounted on the inner reduced or shouldered end of the plug 2 and extending forward within the barrel 1 almost mid-len th of the latter for the purpose hereinafter uly explained.

4 re resents the usual elastic or compressible in reservoir or sack lying freely within the hollow of barrel 1 and extending backward from the pen-section (not shown) in the customary manner, its upper end closely approaching; the inner end of plug 2, as best shown in Fig. 2. y

5 is a metallic bar or s'tri lying in the hollow ofbarrel 1 parallel to the ink-sack 4 and provided a thumb or finger piece 6, extending laterally therefrom mid length througha longitudinal slot or opening .7, made the side of barrel 1. Part of the thumbepiece 6 is cut away next to the strip 5,

so as to provide a longitudinal parallel notch or recess 8, adapted to be engaged by the in-' ner end of the tube 3 for normal y supporting the strip 5 adjacent the inner face of the tube, but free from deressing or compressing contact with the in -sa'ck, thus preventing any accidental discharge of the ink from the sack that m' ht be occasioned by careless handlin of the pen and unduetouching of the thum -piece when unnecessary. The tube 3 loosely fits in the barrel just free enough to be drawn to and from the locking position in'the recess 8 under the overhangin portion .of the thumb-piece of the strip 5, t e outer end of the p'lu 2 serving as a convenient -handle to manipu ate it as occasion may require.

To fill the ink-sack, the plug is loosened or unscrewed till the tube 3 can be slid outward or withdrawn from engagement in the notch 8. Then the thumb-piece 6 is depressed, carrying with and ahead of it the strip or bar 5, w 'c latter is depressed or lowered to expel the air that is replaced by the ink in the usual manner.

A suitable space or annulus preferably surrounds the ink-sack, as best seen in Fig. 2, so-

that no undue danger of accidental ink-expelling contact is present, especially when the pen is in use or in the pocket or in ordinary handling for observation, as the case may be. The only time the locking-tube 3 need be withdrawn is when the ink-sack is to be filled or to be em tied, as required. The usual cap A is use for covering the penpoint when the device is not in use.

9 represents a disk freely su ported-on the under side of the compressor ar 5, it being riveted or otherwise suitably secured at the lower end of the reduced portion 11 of a vertical pin 10, which latterprojects or extends upward a short distance outwardly through an opening 12, made in the side of the hollow arre adjacent the'thumb-piece 6, and the said disk 9 normallytouches, but does not actually press or bear forcibly on the ink-sack 4. The reducedportion 11 of the pin 10 is ada ted to slide freely within a small hole ma e in the'bar 5, the extreme distance of movement being very slight and measured or limited the depth of the space between the bar 5 and the lower shouldered end of the pin,

thus limiting the com ressing effect or action of the disk 9 on the in -sack to start or excite the ink to action at any desired time. A verv delicate tap of the disk on the ink-sack 4 is all that is requisite to get the ink free to feed at the pen-point after the device has not been in use for a time, and by simply striking the pin a very gentle blow with the fin er-tIp the ink starts toflowin This disk an pin tap device is not intende as afeeder to keep the point supplied withink'whi-le in use, but as-a preliminary starter to more quickly get the ink to fiowin instead-0% shaking the entire pen and causing the ink to drop on the floor or elsewhere to cause some waste and damage.

I claim v 1. A fountain-pen com rising a tubular barrel open throughdut its ibngth and having a longitudinal slot pierced in its side intermediate. its ends, a pen-section carried at one end of the barrel, a plug carried atthe opposite end of the barrel, a tube carried by said plug and extending into the barrel, an inksack carried by the pen-section and extending into the barrel and with itsrinner end extending within said tube, a resser-bar freely suspended within the barrel adjacent the inksack, a thumb-piece carried by, the presserbar and extending outward through said lon at the beginning of use of the pen' gitudinal slot and having a longitudinal notch, or slit, therein, adapted to be engaged by the inner end of the said tube and locking the presser-bar against actuating contact or engagement with the ink-sack.

2-. A fountain-pen comprising a tubular barrel having an opening pierced in its side intermediate" its ends, a pen-section carried at one end of the barrel, an ink-sack carried by the pen-section and extending into the barrel, a presser-bar having an opening pierced in it and registerin with the said opening in the barrel and sai presser-bar being freely suspended within the barrel 'par-' allel to and adjacent the ink-sack, means in the barrel for carrying said presse'r-bar and for depressing contact with the ink-sack, and an ink-starting device comprising a transverse pinengaging said. side opening in the barrel and having a reduced, s ner end freely engaging and reciprocating in said opening 1n the presser-bar and a disk carried by the reduced inner end of said pin in en agin contact with the ink-sack.

i me at Cincinnati, Ohio, this 3d day of Octo er, 1905. I

. BENJAMIN- FRANKLIN FLINT.

Witnesses: I

JoHN ELIAS JoNEs, WILLIAM 'SCHUCHARDT.

ouldered in- 1 

